Small Travis fix

.travis.yml

@@ -58,7 +58,7 @@ matrix:
       addons: {apt: {packages: [ghc-ppa-tools,cabal-install-2.2,ghc-7.2.2], sources: [hvr-ghc]}}
     - compiler: "ghc-7.0.4"
     # can't build the testsuites dependencies with 7.0
-      env: UNCONSTRAINED=false TEST=--disable-tests BENCH=--disable-benchmarks
+      env: NOINSTALLEDCONSTRAINTS=true TEST=--disable-tests BENCH=--disable-benchmarks
       addons: {apt: {packages: [ghc-ppa-tools,cabal-install-2.2,ghc-7.0.4], sources: [hvr-ghc]}}
     - compiler: "ghc-head"
       env: GHCHEAD=true